Involves mental processes. The Taxonomy of categories arranged in ascending order of difficulty are: Knowledge: Recognition and recall of information. Comprehension: Interprets, translates or summarizes given information. Application: Uses information in a situation different from original learning context. Analysis: Separates wholes into parts until relationships are clear. Synthesis: Combines elements to form new entity from the original one. Evaluation: Involves acts of decision making based on criteria or rationale.